Is Killing Floor co-op?

Yes, Killing Floor supports co-op.

Does Killing Floor have PvP?

Steam's store page doesn't flag a PvP category, but Killing Floor is tagged Team-Based — it's player-versus-player.

How many people play Killing Floor?

About 224 players were in-game when this page was built (2026-09-08).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Shooter › Co-op horde shooter

Is Killing Floor multiplayer or co-op?

Yes — co-op and PvP. Killing Floor is a co-op horde shooter game released in 2009, 95% positive on Steam (67,472 reviews), with 224 playing right now. $19.99 on Steam.

Co-opSingle-player tooShooter · Co-op horde shooter

6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!

Steam tags: FPS, Zombies, Co-op, Survival, Horror, Multiplayer, Action, Online Co-Op

Do you and a friend both own Killing Floor?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Killing Floor is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Compare our libraries Steam store page

Games like Killing Floor you can play together

HELLDIVERS™ 2

Co-op horde shooter · 76% positive on Steam (1,017,635 reviews) · 53,399 playing right now

Left 4 Dead 2

Co-op horde shooter · 98% positive on Steam (963,983 reviews) · 25,122 playing right now

Warhammer 40,000: Darktide

Co-op horde shooter · 71% positive on Steam (112,960 reviews) · 7,267 playing right now

Warhammer 40,000: Space Marine 2

Co-op horde shooter · 83% positive on Steam (162,585 reviews) · 6,851 playing right now

Deep Rock Galactic

Co-op horde shooter · 97% positive on Steam (343,000 reviews) · 5,216 playing right now

Call of Duty®: Black Ops III

Co-op horde shooter · 84% positive on Steam (215,026 reviews) · 5,414 playing right now

Tired of Killing Floor? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Killing Floor co-op?: Yes, Killing Floor supports co-op.
Does Killing Floor have PvP?: Steam's store page doesn't flag a PvP category, but Killing Floor is tagged Team-Based — it's player-versus-player.
How many people play Killing Floor?: About 224 players were in-game when this page was built (2026-09-08).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; updated 2026-09-08. Powered by Steam — not affiliated with or endorsed by Valve Corporation.